Johan Prinsloo wrote:
> You don't need mapping data for speed limits. If a group of users share
> their data at a central server we can deduce the speed limit from past data.
> The server can learn which suggested alternative routes are the most
> effective for given traffic conditions. The server will know in real time
> what the traffic conditions are on many routes. This would be incredibly
> powerful when these devices become widespread and we form community servers
> for traffic information.
> We probably need to define open interfaces for this kind of server. The
> server algorithms would be very interesting.
before reinventing the wheel or something, there's the openstreetmap
project which gathers freely available road (and more) data in a wiki
manner...